Up to 350 lbs
Up to 7,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
Shock absorbing
Outdoor / rough terrain
View All Specialty Casters
Browse all specialty caster types
All measurements indicate the wheel diameter by the tread width.
The below capacity ranges indicate the working (dynamic) load that each caster will support. A safety factor should be included in your formula to determine your required load rating per caster.
W/(C-1)=R W is total weight needed to move. C is total number of casters required. R is ideal load rating, with safety factor built in. Divide the total load weight by one less caster than you will use to safely determine load rating.
Plate dimensions shown are overall mounting plate size.
When replacing existing casters, select the closest plate size and verify bolt-hole compatibility.
BHP = Bolt Hole Pattern, shown under each plate.
Experience the reliability and convenience of the Durastar Pneumatic / Flat Free Specialty Casters 100 Series. The 8" x 3" flat-free swivel caster is engineered for maximum performance, ensuring that your equipment moves smoothly and reliably even in the toughest conditions. With a 275 lb load capacity, this caster can handle heavy-duty operations with ease, making it ideal for industrial, warehouse, and outdoor applications.
Featuring a flat-free design, this caster eliminates the need for regular air inflation and the risk of flat tires, providing a maintenance-free solution that can save you time and costs over the long term. The 4" x 4-1/2" top plate ensures compatibility with a wide range of equipment and carts, offering seamless integration into your current setups.
Whether you're navigating rough outdoor terrain or moving heavy loads in a factory setting, the Durastar Pneumatic / Flat Free Specialty Caster guarantees a smooth, stable ride. Choose this durable, high-performance caster for a practical, low-maintenance mobility solution.
Invest in the Durastar Pneumatic / Flat Free Specialty Casters 100 Series for unmatched reliability and performance. Enhance your mobility solutions with a caster designed for durability, ease of use, and long-lasting reliability in demanding environments.
Order processing
In stock. Orders placed before 12pm CT (Mon–Fri) typically ship the same or next business day from our Mansfield, TX warehouse.
Shipping method
Because of its size and weight, this item typically ships LTL freight on a pallet. Smaller add-on items may ship parcel. Freight cost is calculated by destination and shown before payment, or quoted for large orders.
Payment & procurement terms
New to CasterHQ? Open an account or request terms and send your resale or tax-exemption certificate before ordering so it is applied at checkout.
Volume pricing & quotes
Quantity discounts apply automatically — no codes needed. For large, recurring, or custom requirements, request a bulk quote and our team will confirm pricing, lead time, and total landed freight upfront.
Returns & warranty
Stock items carry a 30-day return policy in unused, resalable condition. Made-to-order and custom items are non-returnable once production starts. All products carry the manufacturer's warranty against defects.
Central & Southern U.S.: typically 1–2 business days
East & West Coasts: typically 2–3 business days
Remote areas and freight deliveries may take longer.
For pallet freight, scheduled releases, or blanket purchase orders, contact our team and we'll confirm total landed cost before you commit. Direct line: 844-439-4335.
The Durastar Pneumatic / Flat Free Specialty Caster 100 Series is engineered to provide smooth and reliable mobility solutions in a wide range of demanding environments. Whether you're navigating factory floors, outdoor terrains, or warehouses, this high-performance caster is designed to withstand the toughest challenges, offering both durability and ease of use.
The Durastar Pneumatic / Flat Free Specialty Caster is designed for versatility and is ideal for a variety of settings. From industrial factories and warehouses to medical facilities and outdoor environments, this caster excels in both indoor and outdoor applications. It provides optimal mobility for carts, equipment, and machinery that require smooth, stable movement under heavy loads.
When you choose Durastar Pneumatic / Flat Free Specialty Casters, you're investing in a product that delivers not only on performance but also on quality. This caster is designed to meet the rigorous demands of various industries, providing a hassle-free experience with its flat-free, maintenance-free design. Whether you're managing a high-traffic warehouse, an industrial setting, or navigating challenging outdoor conditions, the Durastar caster ensures your equipment and operations remain mobile and efficient.
With a 275 lb capacity, durable construction, and flat-free technology, the Durastar Pneumatic / Flat Free Specialty Caster is the ideal solution for anyone in need of a robust, reliable, and maintenance-free caster. Its smooth maneuverability and compatibility with various equipment types make it the perfect choice for industrial, medical, and outdoor applications. Enhance your mobility solutions with the Durastar caster and experience the difference today!
This 8" x 3" Flat Free Swivel Pneumatic Caster – 275 lb is rated to 275 lbs per caster. Size a set by dividing the total load by the number of casters, and for uneven floors assume 3 of 4 casters carry the load. Keep continuous-use loads within about 75-80% of the rating.
This caster uses a top-plate mount with a 4" x 4-1/2" plate and a 2-5/8" x 3-3/8" slotted to 3" x 3" bolt pattern. Measure your existing mounting holes before ordering; if you are replacing casters, match the bolt pattern - most standard patterns interchange across brands.
This is a Swivel caster. Swivel casters rotate 360 degrees for full maneuverability. For most mobile equipment we recommend 2 swivel + 2 rigid, or 4 swivel with at least 2 brakes.
Rated for -20°F to 180°F. Operating outside the rated range can reduce wheel life and load capacity, so match it to your environment (wash-down, freezer, oven-adjacent, etc.).
The overall height (floor to top of plate or stem) is 9-3/4". Account for it when checking equipment clearance, dock height, and ergonomic working height.
We accept purchase orders and offer Net 30 on approved accounts, ACH, and all major cards, plus tax-exempt ordering with a resale or exemption certificate. Volume discounts apply automatically; request a bulk quote for large or recurring orders. Stock items carry a 30-day return policy in unused condition (made-to-order items are non-returnable once production starts).
$110.00
| Identification | |
| Brand | Durastar |
| Dimensions & Mounting | |
| Wheel Diameter | 8" |
| Wheel Tread Width | 3" |
| Overall Height | 9-3/4" |
| Plate Size | 4" x 4-1/2" |
| Bolt Hole Pattern | 2-5/8" x 3-3/8" slotted to 3" x 3" |
| Mount Style | Plate |
| Rig Type | Swivel |
| Load & Performance | |
| Wheel Capacity | 275 lbs |
| Temp Range | -20°F to 180°F |
| Brake Type | No Brake |
| Materials & Finish | |
| Frame Material | Zinc Plated Steel |
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View all 8′ x 3′ casters & wheels →
Your selection is highlighted. Every option shares its wheel size and mount; a Direct fit tag means the same mounting plate — a drop-in replacement. Step up or down in load rating, all in-stock.
| Casters (in stock) | Load capacity | Wheel | Type | Overall height | Price | |
|---|---|---|---|---|---|---|
| 275 lbs | 8" × 3" | Swivel | 9-3/4" | $110.00 | Viewing | |
| 275 lbsSame capacity | 8" × 3"Polyurethane | Rigid | 9-3/4" | $101.00 | View → | |
| 275 lbsSame capacity | 8" × 3"Polyurethane | Swivel | 9-3/4" | $74.00 | View → | |
| 2500 lbsHeavier duty | 8" × 3"Polyurethane | Rigid | 10-1/8" | $117.00 | View → | |
| 2500 lbsHeavier duty | 8" × 3"Cast Iron | Rigid | 10-1/8" | $150.00 | View → |





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